Sample Resources
Guidelines
Plant tissue analysis can be a valuable guide for crop fertility management. Following the sampling guidelines the analysis results can be used as a fertilizer application guide for perennial crops such as peaches, or the results can be used to diagnose nutrient problems with both perennial and annual plants.
- Lab Procedures
- Preparation of Plant Samples for Analysis
- Preparation and Determination of %100 Dry Matter in Feed and Forages
- pH Determination (Silage Only) in Feed and Forages
- Dry Ash Procedure for B & Al
- Dry Ash Procedure for P, K, Ca, Mg, Zn, Cu, Fe
- Wet Ashing Procedure Using HNO3+30%H202 for P, K, Ca, Mg, Zn, Mn, Cu, Fe, S
- Wet Ashing Procedure for P, K, Ca, Mg, Zn, Mn, Cu, Fe, S Using HNO3 and HCLO4
- Total Nitrogen by Combustion
- Kjeldahl Digestion for Total Nitrogen
- Determination of NH4-N by Steam Distillation
- Procedure for Distilling Samples on the Kjeltec 2300 Analyzer Unit
- Standardization of Acids and Bases
- Acid Detergent Fiber Determinations (ADF)
- Determination of ADF-N - Bound Protein
- Neutral Detergent Solution Determination - NDF
- Soluble Protein
- Determination of % Fat (Hexane)
- Determination of % Fat (Ether)
- Determination of Sodium (Na)
- Determination of Nitrate Nitrogen (N03-N) by Specific Ion Electrode
- Determination of % Ash
- Determination of Phosphorous by Colorimetry
- Tubidimetric Determination of Sulfur as Sulfate
- Chloride (Total) Determination
- Chloride (Soluble) Determination
- Washing Glassware
- Sample Storage and Disposal
| Analyses Available | In State* | Out-of-State* |
Comments |
|---|---|---|---|
| Standard Minerals | $6 | $12 | Includes phosphorus, potassium, calcium, magnesium, zinc, copper, manganese, iron, sulfur, and sodium. |
| Orchard Leaf | $17 | $34 | Includes phosphorus, potassium, calcium, magnesium, zinc, copper, manganese, iron, sulfur, sodium, total nitrogen, boron, and aluminum. |
| Total Nitrogen | $6 | $12 | |
| Boron | $5 | $10 | |
| Soluble Chloride | $5 | $10 | |
| Nitrate Nitrogen |
$5 | $10 | |
| Mailed Paper Report | $3 | $3 |
Agricultural Service Laboratory
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Agricultural Service Laboratory | 171 Old Cherry Road, Clemson, SC 29634
